Eductive unit for cleaning catch basins



1935. R. c. EVANS 2,010,538

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5, 1935- R. c. EVANS 2,010,538

EDUCTIVE UNIT FOR CLEANING CATCH BASINS Filed Dec. 4, 1953 15 Sheets-Sheet 9 Jig/.16., ll 1 T o o 147 a 111 I; W a! 2 y m H k M: 124

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Aug. 6, 1935. R. c. EVANS EDUCTIVE UNIT FOR CLEANING CATCH BASINS Filed Dec. 4, 1933 15 Sheets-Sheet 10 Aug. 6, 1935. R. c. EVANS EDUCTIVE UNIT FOR CLEANING CATCH BASINS l5 Sheets-Sheet l 1 Filed Dec. 4, 1935 fovzafd f/emezl (fyanc.

Aug. 6, 1935. c. EVANS EDUCTIVE UNIT FOR CLEANING CATCH BASINS Filed Dec. 4, 1933 13 Sheets-Sheet 12 171 5 1 SF .Paazafa (76mm 51/4426.

Aug. 6, 1935. Q EVANS 2,010,538

EDUCTIVE UNIT FOR CLEANING CATCH BASINS Filed Dec. 4, 1935 13 Sheets-Sheet 13 Patented Aug. 6, 1935 UNITED STATES EDUCTIVE UNIT FOR CLEANING oa'ron BASINS Ronald Clement Evans, Elgin, Ill... assignor to Municipal Appliance Company, New York, N. Y., a corporation of Maine Application December 4, 1933, Serial No. 700,930 17 Claims. 01. 214-65) This invention relates to a hydraulic pumping unit especially adapted for use on vehicles and the like, but also applicable to any other suitable support.

More specifically, this invention relates to a portable eductor for cleaning out catch basins, cess pools, grit chambers and any receptacle containing sludge, grit or dirt laden fluid. It concerns itself primarily with means for pumping or ejecting the sediment in catch basins or sumps or the like, depositing the same in a settling tank of novel construction, separating the fluid'used, and re-using the fluid for pumping purposes.

Heretofore it has been necessary in the manufacture of eductor apparatus of the above noted type to construct the apparatus for a specific vehicle chassis. This necessitated either the shipment of the truck chassis to the manufacturer of the eductive apparatus so that the apparatus could be built for that specific chassis, or necessitated the manufacture of the apparatus to conform with the chassis of the specific truck to which it was to be applied and the installation of that apparatus on the truck after shipment to its point of destination.

Inasmuch as truck chassis have frames of varying dimensions, such for example as widths varying from 30 to 42", it will be appreciated that every eductive unit had to be built from a specification which depended upon the dimensions and characteristics of the truck'chassis to which the unit was to be applied. Needlessto say, specifications for truck chassis'are constantly being changed, and unless notice is received of such changes, it frequently happens that the unit is not constructed to conform with the chassis as changed. 7

Accordingly, it is the aim of this invention to provide an eductor unit which is universally applicable to standard truck chassis and does not require that it be constructed in accordance with the specifications of any standard chassis to which the unit is to be applied.

It is among the objects of this invention to provide such a portable eductor as a unit construction which may be adjusted for different types of vehicle frames when it is to be used in travelling from place to place or which may be afiixed to a stationary base when it is desired to appurtenance the same to gas works or sewage plants or the like.

It is a further object of the invention to provide a novel control for such a machine whereby different parts may be independently operated.

It is a further object of this invention to provide a novel 1 support and adjustment for the hydraulic elevator whereby the strain is removed therefrom in its operative position and whereby it may be readily adjusted.

It is also an object of'this invention to provide a vehicle havinga fluid container with a hose reel having a hose wound thereon with one end connected to the container through the reel. 'It is an important object of this invention to provide a unit in which all parts are mounted in proper relation so that no assembling of parts is required upon the job, and in which the eductor hose is always properlyconnected and requires only a lowering or elevating movement thru the rotation of a reel.

With these and other objects in view which will become more apparent in the following description anddisclosures, the invention comprises the novel structure andcombination of parts here inafter described and more particularly pointed out and defined in the appended claims.

In the accompanying drawings-which illustrate a preferred embodiment of this invention and in which similar reference numerals refer to similar features in the different views:

Figure 1 is a side elevational view of my improved eductor mounted upon a. vehicle.

Figure 2 is a top plan view of the frame of the eductor mounted upon the frame of a vehicle.

Figure 3 is'a sectional view taken upon the line III-III of Fig. 2 looking in the direction of the arrows, and showing parts in elevation.

Figure 4 is an enlarged fragmentary elevational view illustrating the connection between the eductor frame and vehiclechassis taken'substantially upon the line IV lIV of Fig. 2, looking in the direction of the arrows;

Figure 5 is an enlarged sectional view taken upon the line VV of Fig. 3 looking in the direction of the'arrows.

I Figure 6 is 'an elevational, View of a clamping member used to connect the frames.

Figure 7 is a top plan view of the settling tank.

Figure 8 is an enlarged vertical sectional view thru the settling tank taken in a longitudinal plane and showing parts appurtenanced thereto.

Figure 9 is an enlarged transverse sectional view thru the settling tank.

Figure 10 is-an enlarged fragmentary sectional view taken upon the line X-X of Fig. '7 looking in the direction of the arrows. 1

Figure 11 is a fragmentary elevational view of certain features of construction.

- Figure 12 is an enlarged fragmentary elevational view of a seepage bearing constituting a feature of this invention.

Figure 13 is an enlarged sectional view taken upon the line XIIIXIII of Fig. 14 looking in the direction of the arrows.

Figure 14 is an enlarged sectional view taken upon the line XlV-XIV of Fig. 13 looking in the direction 10f the arrows.

Figure 15 is a fragmentary elevational view of a pumping mechanism that may be used.

Figure 16 is an enlarged part sectional and part elevational view of the pumping mechanism taken upon the line XVI-XVI of Fig. 15 looking in the direction of the arrows.

Figure 1'? is an enlarged sectional view taken upon the line XVII-XVII of Fig. '16.

Figure 18 is a fragmentary and broken elevational view of certain features of construction relating to the control of different parts.

Figure 19 is an enlarged sectional View taken upon the line X[X'-XIX of .Eig. :13 looking in the direction of the arrows and showing par-ts .in

elevation.

Figure 20 is an enlarged part sectional zand part elevational view of thecontro'l mechanism tor the hydraulimelevator taken upon the line XX XX -.of .Fig. 19 :looking the direction of "-the arrows. V

Figure 21 is an enlarged fragmentary elevationalview of certainrfeatures of construction.

Figure 22 is an enlarged =fragmentary elevational 'view of the control for the adjustment of the hydraulic elevator. v a

Figure (23 is .an-elevational viewlof .the hydraulic elevator.

:Figure 24 is an enlarged sectional view taken upon the line .XXIV--XXIV .of Fig, .23., looking in the direction of the arrows.

Figure .25 .is a sectional viewtaken upon the .line XXlL-XXY of Fig. 24 looking in thedirection the arrows. V

Figure 26 is .an enlarged sectional view taken upon the .line XXVI-XXVI of Fig. 23-.looking in the directionlof the arrows.

Figure 27 is an enlarged .elevational View illusstrating the hydraulic elevator r 1 In referring-now to the drawings, it'willbenoted that the portable eductor .has been illustrated :as supported upon a. vehicle which in the present instance is shown -as.a motor truck A .-having a frame comprising .the parallel channel beam 2 (Fig. 2) that extendsin .a longitudinal direction as is well known in the art. .The eductorframe comprises .the transverseinverted channel vmembers 3 which are designed .to restnpon the frame members 2. Inthe instant case fourtransverse channel members 3 are shown and lrlIlQILihfiSE channel members are welded .or secured spaced sets of channel beams 4,, arranged back to back and being longitudinally arranged. Each set of channel members forms an I-fbeam. i p

The eductor frame comprising the channel member 3 and the I beams thereon is adapted to be adjustably clamped to the vehicle frameby means of the clamping members 5. In the illustrated embodiment of the invention, a pair of clamps 5 are connected to-eaoh transverse channel-member by means of -a bolt 6. The clamps on (each channel 3 are suitably spaced for association with the channel beams "The clamps are b estshown in Figs. 4, .5 land 6 and in referring to these figures, it will be observedathat each clamp has heel portion 50. that engages ;:beneath the web .of a channel member 3. The heel portionfsrz merges into a horizontal-1y extending portion .51) thru frame members.

which the bolt 6 extends. The horizontally extending portion 517 merges into a pendant portion 50 which has a bevelled or cam shaped toe 5d extending at a right angle thereto for engaging beneath the upper flange of the adjacent channel beam 2. It will be appreciated that by tightening the nuts on a bolt 3, the clamp 5, held thereby, will readily adjust itself to any inequalities in the structure of the frame and firmly grip the Due to the fact that each transverse channel member is firmly anchored to each channel beam 2, it will be evident that the educ- "tor frame is firmly secured to the vehicle frame, and due to the fact that the clamps may be readily loosened, it is possible to longitudinally adjust the 'eductor frame and quickly clamp the same in its adjusted position.

The rear end of the vehicle frame includes a transverse channel E (Fig. 3) which fits between the flanges of the channel beams 2. The rear end clamps '5 are designed to engage the upper flange of the transverse channel '5 as shown in Fig. 3 with the result that the eductor not slide off the vehicle frame; the clamps 5 and channel flange forming 'coacting shoulder-s for arresting the cductor frame from sliding rear-- Wardly when the same is tilted.

. The base :of a settling tank '8 is pi-votally supported [upon the beams 2-4 as shown moreclear- 1y :Figs. 1 and 8. The base of the settling tank consists of the longitudinally extending I beams 9 each of which has a hinge plate in secured to the bottom thereof. Upon the rear ends of -the I :bea-ms 4, are secured hinge plates -ll project beyond the said .1 beams. The hinge plates 1H! and M have registering apertures 12 :-for receiving a pivot rod. To the I beams 9 are welded -.or secured the transverse I beams 4-3 to which the :settling tank -8 is fastened.

The settling :tank is adapted to be tilted upon its pivotal connection with the eductorframe as shown in dotted lines in Fig. 8. To this end, cam members M are secured to the base of the setting tank .at approximately the center thereof in any suitable manner. In the present instance, the eam members are shown as secured at their ends to rods 15 secured to the I beams 9.. n fluid cylinder re secured to the eductor base is provided with a piston rod ll carrying a rod rlZla upon which rollers i=8 are journalled (Figs. 8 and .99 for engaging the cam members Id. The red carries guide rolls 5a (Fig. 8) that travel upon tracks ha.

'The settling tank 8 which may be made of metal .or any suitable material is wider at its rear than at "i-tsfront as shown in Fig. 7. This will cause the sides to diverge and facilitate the dumping (of the tank when it is tilted for such a purpose. Within the settling tank, there .is formed a chamber for-receiving the sediment. This chamber is formed by the rear wallof the tank, a pair of rear-wardly diverging plates l9, and a front plate 213. The plates l9 are secured to the bottomof the tank bymeans of angle brackets 21 and they are provided with perforations 22 which cover substantially a triangular area as shown in Fig.8, the apex of which .lies in the upper rear portion of the tank. 'The lowermost apertures lie in a horizontal plane that coincides substantially with a diagonal extending from the upper rear corner of the tank to the ,lower forward corner. This plane constitutes approximately the angle of repose of the sediment. In other words, the upper surface of the sediment will slope downwardly from the rear to the front. The water in the sediment will escape thru the perforations 22.

The tank. is provided with a cover member 23 l and beneath such cover there is a transverse rod position. .It will be noted thatthe plate 20 is' spaced a short distance from the front wall of the tank thereby providing a compartment with such front wall. The cover 23 of the tank is provided with a door 26 above such compartment which may be opened so that rocks or coarse matter may be manually deposited in such com partment. When the tank is tilted,'the plate 20 will be forced to swing rearwardly toallow such rocksor coarse matter to pass thereunder.

The rear wall of the tank is in the form of a hinged discharge door 21.. A rod 28-which is suitable anchored to the top of the tank forms the hinge support for the door which is provided with hinge straps .29 embracing such rod.

In order to provide a seal between the door 21 and the tank, filler blocks (Figs. 8 and 10) are welded to the bottom and sides of the tank at a short distance from the rear ends. Angle members 3| are securedover the filler blocks,

and in the spaces between the angle members and walls of the tank are flexible sealing strips 32 which preferably consist of rubber or some similar material. It will be noted from Fig. 10 that these sealing strips extend slightly beyond the rear edge of the tank so that the same must be engaged by the discharge door.

The sides and bottom of thedischarge door 21 are adapted to be firmly clamped against the sealing strips 32. To this end, suitable bolts 33 provided with terminal loops or eyes 34 are pivoted to blocks 35 secured in the angle members 3|. These bolts are shown as pa'ssing thru slots 36 formed in the margins of the angle members 3| and the door 21. Wing nuts 31 threaded upon these bolts are adapted for engaging the door and clamping the same against the sealing strips 32.. When it is desired to open the discharge door 21 it is necessary to loosen the nuts 31 and swing the bolts 33 thru the slots 33. The door 21 is also held inits closed position by a clamping rod 38 (Fig. 8) which is adapted to be actuated by a lever 39; When the bolts 33 are loosened and swung thru the slots 36 the'lever 39 may be actuated to release the door. The clamping rod 38. and lever 39 are old in the art and are notspecifically illustrated.

The sediment which is usually saturated with water is deposited into the rear part of the settling tank by means of a pipe 40 (Figs. 1 and 7) which extends thru the cover. The water whichrdrains fromthe sediment passes from the settling tank thru an opening 8a in the bottom of the tank to a pump for reuse as will later appear. 1 t i The forward end of the sediment dischargepipe 40 extends into a flange 4| (Figspl2 and 13). This flange 4| is bolted to a hollow sleeve 42 which forms an external bearing for an interior sleeve 43. A cork ring 44 is positioned between the inner end of the sleeve 43 and the flange 4|, the sleeve bearing 42 being suitably rabbeted to receive such cork ring. Screws45 maybe used to attach the cork ring to the end of the rotatable sleeve 43. A plate or packing 43 may be placed between the flange 4| and the sleeve 42. This packing 46 is provided with an enlarged opening that extends beyond the cork ring 44. The flange 4| is provided with an aperture or water outlet port 41 communicating with said opening. With this construction, water can seep between the cork ring" and flange 4| and escape thruithc port 41 and wash or flush away any sediment that may creep between the flange and the cork ring.

The sleeve which rotates in the bearing 42 carries a reel 48' which is modified for receiving a curved pipe section. The lower end of this pipe section is provided with an annular flange 5|? which is bolted to a substantially annular flange 5| upon the rotatable hollow bearing sleeve 43 which is provided with an inlet port 52 in registry with the curved pipe section 49.

The upper end of the curved pipe section 49 is provided with a flange 53 to which is bolted a sleeve 54 having internal serrations 55. An armored hose56 which'has a plain rubberend extending into the sleeve 54 is fastened thereto by an expander ring 51. which forces theplain rubber end to become imbedded in the serrations. A clamp 58 which has an arcuate portion fitting'over the upper surface of the armored hose 56 is provided with an upwardly offset slotted portion 59 for engaging a flange 60 upon the sleeve 54. It will benoted that the slot 6| in the clamp 58 is designed to receive a portion ofthe flange 60. The clamp 58 is provided with downwardly extended portions bolted to the reel as shown in dotted lines in Fig. 14. According to this construction any strain upon the armored hose is transmitted to the clamp 58' and sleeve 54. The reel 48 is provided with a sprocket wheel 62 whereby the same may be rotated. From its attachment to sleeve 54, the armored hose encircles the reel a few'tirnes with the free end extending downwardly.

The lower end of the armored hose is connected to a metal pipe' 63' as shown more clearly in Figs. 24 and 25. The pipe 63 has a flange 64 to which a sleeve 65 is connected; The sleeve 65 has interior serrations 66 and a terminal rib 67. The armored hose 56 has an unarmored lower end extending into said sleeve, and an expander 68 within the hose expands the same against the serrations 66 to cause the latter to bite into the rubber. A split collar. 69 is clamped around the lower end of the armored hosel The lower end of this collar 69 has an internally grooved enlargement 10, the groove of which receives the rib 6'|...Thus the weight of pipe section 63 is transmitted to the coupling sleeve 69 which surrounds the armored portion of the base. Thuswise a stronger and more rigid connection is secured. A hollow metal pipe 56a protects the armored hose for a suitable distance above the nozzle section 63;

The pipe section 63 has an oifset pipe portion 7| thu which thesediment is sucked. The lower end of the section 63 has a restricted valve or jet nozzle 12 formed by a converging wall 13 and a pressure pipe 14 is connected to such lower end. It will be obvious that if a fluid is forced thru the pressure pipe andthru the jet nozzle, a vacuum will be created for sucking the sediment thru the offset pipe portion 1|. The pressure pipe is. connected to the discharge pipe by a clamp 15 shownmore clearly inFig. 26. This clamp :15 :consists of two complementary sections each of which is formed-with a pair of arcuate portions 1 5a and 15b .interiorly corrugated for engaging the two pipes. The complementary sections are clamped against the pipes 56 and M by a bolt 16 :located between the arcuate portions.

The pressure pipe 14 is connected to a flexible hose 'I'I (Figs. 1 and .27 which is connected to a pump outlet pipe 78 which has a curved upper portion I9 bolted to a flanged-opening 89 in'the pump casing 8! supported upon .a supplemental frame mounted upon the eductor frame as shown in Fig. 157. The pipe .18 has a three way cock controlled by a handle 82 and a water supply pipe 83 extends from the valve. The pipe 83 may be connected to any water supply for supplying the system before operations begin. The three way valve may be adjusted to admit water from the pipe 83. It may also be adjusted to shut off the water thru pipe :83 and establish communication thru the ejector hose, or it may be .closed toprevent flow into or from the pump. The upper curved portion of the pipe 19 has a connection with a jet pipe 84 which is adapted to extend into the catch basin for agitating the sediment.

The center of the pump casing has an opening 85 (Fig. 16). that communicates with a pipe 86 which has an vL-shaped head portion 87 bolted to the center .portion of the pump casing. This L-shaped head is preferably provided with a removable end cap 88 for access to the pipe.

The pipe 86 connects with a horizontal pipe 89 that is provided with a .drain nozzle at its free end. A valve 9| controlled by a handle 92 is located adjacent the nozzle 99 to either shut off .any drain from the pipe or to allow the same to drain. A short vertical pipe 93 is connected 'to pipe 89 between the valve and the pipe 86.

In referring to Fig. 11, it will be noted that the upper end of pipe 93'is provided with a bevelled head '94 which is normally pressed against a sealing ring located in a groove 96 in a metal hood 9'! which is formed on a short pipe section .98 which is connected to a valve housing 99 which in turn .is connected by a hollow threaded member II!!! to a stand pipe IIlI secured in the aforementioned opening 8a in the bottom of the tank.

The bevelled end 94 of the pipe 93 is normally forced against the sealing ring 95 by means of a coil spring I92 surrounding the pipe and supported at its lower end upon a bracket IIJ3 (Fig.- 16) attached to a transverse channel 3 of the eductor frame. The upper end of said spring engages beneath the bevelled head 94 of pipe 93 and forces such head against the sealing ring. With this construction, the settling tank can be readily tilted without affecting the pipe 93;

In referring now to Figs. 16 to 20, it will be observed that the pump rotor I94 within casing SI is secured to the end of a pump shaft I05 journalled in the pump casing and in a bearing I96 constituting a part of the pump casing. The pump shaft I95 extendsbeyond the bearing I06 and its free end is journalled in a ball bearing I01 located in a friction clutch housing I98 shown in section in Fig. 20. The housing I08 has a sleeve I69 that extends in an axial direction and is splined to a driving shaft III] connected with the fly wheel III of a motor H2.

It should be noted that access may be had to the interior of the pump casing BI and the rotor H14 through a cleanout opening 80' normally covered :by .a detachable =closure plate 81' bolted to the casing. By aligning an end of the rotor with the npening 89. a cleanout rod may be insertedintothe interior of the rotor.

Within the friction clutch housing, there is a flanged member H3 secured to the pump shaft I55. A :built up friction plate member .I I4 .is adapted to engage the flange H30, of the member H3. This friction member has a plurality of radially extending studs I I5 that are located in bifurcations in the inner ends of guide pins H6. secured in the housing .108. This feature maintains the friction member in proper position with provision for sliding movement. A plate member 1H1 surrounds the hub of the flanged member 'I I3 and means are provided for pressing the plate against the friction plate member M4 for causing the latter to engage flange 3a. To this end the member I I! has a laterally projecting rib '8 upon its outer surface adapted to be engaged by a shoulder H9 on a lever I29 pivoted upon a lug 'I-2I projecting from a ring member I22 threaded for adjustment upon the hub of the flanged member I143. The lever I29 is connected by a link I23 to a slidable sleeve I24 on the shaft IE5. A yoke lever I25 is pivotally attached to the sleeve I2 1 at its upper end while the lower end thereof is secured to a shaft I26 journalled in a bracket I21 secured upon a framemember I28 resting upon the channel I beams 4' l. A lever I29 secured to shaft I255 is adapted to rotate the shaft for actuating said lever I25. If desirable, the plate Ill and the hub of friction member H3 may have interfitting teeth I39 and I3].

Between the pressing plate member I I! and the friction member H3 are coil springs I32 for releasing the friction clutch members. A pin I33 slidably mounted in .a cavity in ring I22 is connected to the pressing plate In. A coil spring I 34 surrounding the pin in the cavity engages an annular shoulder I 35 on the pin for urging the pin on pressing plate against the friction elements. It will be understood that any number of pins 13.3 may be used, and that any desired number of levers 429 may be used.

The above described friction clutch controls the eductor pump. A jaw clutch is also connected to the motorshaft for=operating the hoisting mechanism for the settling tank, so each can be independently controlled. This jaw clutch comprises aslidable clutch member I35 actuated by a yoke lever I25 secured upon a shaft I26 which is actuated-by .a lever I29 in the same manner. as the friction clutch is engaged. The

clutch member I35 is slidably splined upon the sleeve I99 and is provided with clutch projections I36 adapted for entering :clutch recess I31 in the hub of a sprocket wheel I38 journalled "upon the sleeve IE9.

The sprocket wheel I38 is journalled upon a roller bearing I39 having :an inner sleeve I49 surrounding the sleeve I99. A ring MI surrounds the sleeve I09 and forms an end abutment for the sleeve 1'49 .and the sprocket wheel I38. Upon the opposite side of the hub of the sprocket wheel, there is attached a ring member I42 that extends between the right hand end of sleeve MI} and a collar I48 secured upon the shaft I!!! adjacent the. right hand end of sleeve IE9. This construction maintains the sprocket wheel in position against longitudinally shifting movements.

A sprocket chain I44 is trained over the sprocket wheel I38 and over a sprocket wheel I45KFig. 19) connected to a fluid pump M6 supported upon the frame members I 28. The" pump I46 which may be of any suitable. known construction is shown as having a pair. of flexible hose I41 connected to the fluid pressure. cylinder I6. The drive for the fluid pump comes indirectly from the motor which is shown as mounted upon a frame supported upon the eductor frame. The motor supporting frame or base comprises the I-beams I26 mounted uponthe I-beams 4.4.so that. the unitary feature is completely maintained. The fluid pump I46 is supportedupon a channel bar I48 supported upon the I-beams 4-4 thereby preserving the proper relation between the motor and such fluid pump.

Mechanism has been provided for rotating the reel 48 when it is desired to raise the hydraulic elevator or eductor pipes. To this end," the sprocket wheel 62 upon such reel has trained thereover a sprocket chain I49 which is also trained over a sprocket wheel I50 (Figs. 21 and 22) secured upon a shaft I5I journalled in acasing I52 supported upon the eductor frame. An internal gear wheel I53 is secured upon the'shaft I5I. This internal gear is adapted to be driven by a pinion I54 (shown in dotted linesin Fig. 21) secured upon a manually rotatableshaft I55 journalled in the casting and provided with a hand crank I56 at its outer end. 1 In order to prevent reverse movement of the shaft I5I, a ratchet wheel I5'I is secured upon shaft I55 and is engaged by a pawl I58 pivoted to the casting. To lower the hydraulic elevator, it is of course necessary to disengage the pawl from the ratchet. I 1 The casting I52 is provided with a rectangular recess I59 (Fig. 8) formed by'arms I6'0,I6I and a web I62. A horizontal support I63 extends from the web I62 for engagement by a lug I64 upon the pipe "I4 of the hydraulic elevator when the same is elevated. "The recess I59 is normally closed by a bar I65 which ispivoted to the bar 160 by means of a bolt I66 for upward and down ward swingingmovements. A removable pin I61 secures the bar I 65 to the bar I 6I. It is of course necessary to removethe pin I 61 and" swing the bar I65 clear of the recess in order to allowfthe hydraulic elevator to enter such recess whenthe same is elevated by the hoisting mechanismpreviously described. It is also necessary that the hydraulic elevator be raised until the lug I64 is above the horizontal support I63 before it is pushed into such recess I59. Thus the hydraulic elevator is securely confined and supported iriits elevated position when not in use. V

When travelling to a catch basin that is tobe cleaned out, the hydraulic elevator will be supported and confined as shown in Fig. 21. When it is desired to lower the same into the catch basin, the bar I65 is uncoupled by removing the pin I61 and is swung out of the way to allow the hydraulic elevator to be moved laterally from support I63 for lowering purposes. The pawl I58 is then disengaged from the ratchet whereupon the hydraulic elevator may be lowered by'gravity. If the clutches are not in proper position, the friction clutch should be disengaged and the jaw clutch should be engaged. Then the motor may be started for operating the eductor pump, provided of course that the system has already received the proper'amount of water frorn some hydrant. The eductor pump will elevate the sediment in the catch basin thru the hydraulic elevator and deposit the same in the settling tank. The solid material will settle in the bottom of the tank in'the'form of an inclined mass as previouslyset forth. The water from the sediment will escape thru. the standpipe for reuse.

. When it isdesired to empty the settling tank,

the rear wall thereof is released as explained and the jaw clutch is engaged and thefriction clutch is disengaged whereupon the motor will operate the hoisting pump I46 for supplying fluid under pressure'to thehoisting cylinder I6;'for tilting the settling tank; as previously explained.v l/Vhen the hoistingpump. is .shut .down by. disengaging the jaw clutch,- v the settling tank, will gradually return to its normal position. .w When his desired to raisethe hydraulic elevator from the catch basin, the hand crank I56 should vbe.rotated forrotatingthe reel I48 and winding the hose.thereon.;

.It ,will be appreciated. that the eductor unit with all parts in proper position may bereadily mounted'upon any suitable vehicle or upon a stationary. base. With the eduction hose carried by a. reel, it becomes a simple mattento lower or elevate thesame. Further in sucha construction,.=..the eductor. hoseis always properly connectedandrequires no connections on the'job. Itwill further be appreciated that a single motive power is'usedto operate the eductor pump, and

tiltrthe settlingtank independently of each other,

. :It should be noted that while Ihave illustrated azvsettlingtank of my own design, another settling tank of. any well known construction of the prior art may be substituted therefor in the event a different tank isdesired.

. 41am aware that many, changes may be made and numerous details ofa construction may be varied throughra wide range without departing from the principles of this invention, and I, therefore. do not purpose limiting the patent grantedu. hereon otherwise than necessitated by the prior.art..

.' I claim as my invention:

1:. In an eductona unit adapted to be mounted on a vehicleand comprising a"-settling tank and pumping means; a hydraulic elevator connected to said tank and pumping means, a reel carried byanddischarging into saidtank upon which reel a portion of said elevator is mounted, means for operating: said reel for elevating said hydraulic elevatorand means other than said reel .for supporting said hydraulic elevator in elevated position.

2. An eductor unit adapted to be mounted on a vehicle comprising a frame, a tiltable tank upon said frame, a pump upon saidframe, a hydraulic elevator including an ejector head and a hose portion connected to said' tank and pump, a reel abovesaid frame upon which'the hose portion of said elevator is wound, said reel having a discharge tube 'thereirr connected to said hose portion. and being so connected'to said tank as not to require that the reel and hose portion be disconnected from the tank when the tank is tilted on said frame -and..means for rotating. said reel for elevating "said: hydraulic elevator, .said ejector head being suspended from said reel when in use so as to exert a force tending to unreel the hose portion wherebythe unreeled part. of the hose portion'may behld taut between the reel and the ejector head. v 3. An eductor'unit adapted'to" be mounted on a vehicle'comprising a frame, a tiltable tank upon said frame, a hollow shaft journalled upon said tank; apipe extendingfrom said tank andcommunicating with saidhollowshaft a reel supported upon said hollow shaft and having a tube tit communicating with said: hollow shaft, a hvdrau lic. elevator including a fluid operated ejector connected to said tube for discharging" into. said hollow; shatt, pumping. mechanism connected to said hydraulic elevator for forcing fluid. therethrough up to: said reel and? into said tank.

4. In an eductona unitcomprising abase, a tiltable tank upon said base, a pumping: mechanism upon said base,.a elevator including a fluid. operated ejector connected to saidipumping mechanism, a reel upon said tank, saidhydraul-ic: elevator being wound upon said reel, a connection between-said! hydraulic elevator and tank extending axially thru said'reel, said reel being movable: said tank so as. to enable said connection to remain intact, and

means for operating said pumping mechanism to force fluid through said elevator ejector up: to said: reel and: into said' tank. I

5'. In an. eductor adapted: to be mounted on a vehicle, an elevated support, a hydraulic elevator including a flexible hose: having meansfor engagingsaid support by a lateral; movement, hoisting mechanism including arrest upon which said hose is: adapted to be wound for raising said elevator whereby said means may be.- brought into..-en.- 'gagement: with said supportwhen said elevatoris not in use, meansi ormaintaining. said; hydraulic elevator upon said support and; means operatively connected tosaid hoisting mechani'sminr holding the unreeled portion of the flexible hose in a given suspended position the elevator is not in engagement with said support.

6. In an. eductor unit, a frame, a'tiltable tank upon: said frame, api-peextending fromsaid tank; a stationary bearing tor'receiviug theiree end; of said pipe, a reel: having a hollow .hub mounted said bearing, said reel having a hollow arm communicating with said hollow hub, ahydraulic elevator having a flexible portion wound upon said reel and connected to. arm, and means providing for seepage of. fluid between said hub and bearingand: inside of" said; tank.

T. A portable eductor applicable in its entirety and: without any substantial change therein to a vehicletchassis or any other suitable support, comprising aframe, a settling tank pivotally car-lied thereon, hoistingmeans: between said tank and said. frame and. carried the trame for elevating. air end of said tank: to: discharge the contents thereof, a hydraulic. elevator connected. to: said tank; and a primermover carried by said frame for actuating said hoisting means. and said elevator said elevator includin a. hose and; a reel therefor supported between the tank and said prime: mover.

8'. A portable eductor unit. applicable. in. its entirety and without change therein to a vehicle chassis: or any other suitable support, comprising a frame, a settling tank pivotallycarried thereon, hoisting means he; tween said tank and frame. for elevating an end; of said tanktodischarge the contents thereof, a elevator connected to said tank, and a prime mover carried by said frame. for ac.- tuating'saiclhoisting means and said elevator, said J hydraulic. elevator including a hose reel carried by the tank. a. hose'connected', to said reel, an eductor nozzle carried. by said hosc,, a pump for. actuating fluid; the elevator, and conduit means between, said. hose, said. pump and. said tank.

9. In a vehicle,v a tiltable fluid.- container, a hose reel, a hose having an end connected to-and adapted to be wound on the. reel, said. endou said amazes reel also being connected to. the interior of said container, said reel being mounted on. said container and having aconduit with one end in. commumoation with said; end of the. hose and its other end in communication with the interior of the container and means for tilting the container and thereby to raise said. reel and conduit.

. 10. In. a. vehicle, a. tiltable fluid container,.. a hose: reel, a hose having an end connected to and adapted to be Wound on the reel, said end on said reel also-being connected to the interior of said container, said reel being mounted on said-.container and having a. conduit with one end in communication with said end oi the. hose and its other end in communication with the interior of. the container, said conduit including as a. section thereof a hollow spindle comprising a part of said reel and being rotatably carried by the; container andv means. for raising said reel and conduit, by the tilting of. said container.

1-1.. In a vehicle, a. fluid container, a hose reel, a hose having. an; end connected to and adapted to be wound on the reel, said. end on said reel also being,- connected to. the interior of said container, saidrcel. being mounted on saidtank and having a. conduit with one. end in communication with. said: end of the hose and its other end. in communication with. the interior of the container, said conduit. including as a section therecfahollow spindlecomprising a part. of said reel and being rotatably carried by the container, saidnspindle having a. gland disposed in. the, in.- terior of smell tank and through which a small amount of fluid may pass into the interior of the tank.

12. In a. vehicle having an eductor thereon, a fluidcontainer, a. hose reel, said hose reel having therein a central conduit consisting of a fixed axial. tube discharging directly into said container, ahose having an. end connected to and adapted to. be wound on the reel, said end, on said reel also being. connected to the interior of said container, and an.- eductor nozzle head carried by another end of. said hose soas to besuspended from said reel when itis lowered. in a catch basin or the the weight of said nozzle head serving to -inaini;ain the unreeled portion of said hose au r 13. Ina vehicle, a fluid container, a hose reel, a hose.- having an end connected to and adapted to be wound on the reel, said end on said reel also; being connected tothe interior of said container, said hose including a coupling in. which a portion of. the hose is secured, and a collar clampingly secured on the outside of. the hose adjacent said coupling. on which pulling strains are imposed to aid in preventing said portion of the hose from being pulled out of said coupling. v 14.. In a hydraulic. apparatus for cleaning catch basins or. the like, a settling, tank, a hose reel rotatably carried adjacent one end of the tank and having a hollow shaft discharging into the tank, a. hose connected to. said. shaft adapted to. be wound on said. reel, a hydraulic eductor connected. to said. hose so: as to be suspended from said reel when it. is lowered into a catch basin or the like and means for holding. said reel against rotation to cause the eductor to be suspended therebelow and; at variable distances from the reel depending upon the depth. and location of the contents of thebasin. being cleaned.

' l;5-. In a. hydraulic apparatus for cleaning catch basins or the. like, a tiltable settling tank, a hose reel rotatably carried at an end of the tank which adapted to be raised during the tilting of the tank, said reel having a hollow shaft discharging into the tank, a hose connected to said shaft adapted to be wound on said reel, a hydraulic eduotor connected to said hose so as to be suspended from said reel when it is lowered into a catch basin or the like, pumping means including a flexible pipe line connected to said eductor for forcing fluid therethrough up through said hose and said reel and into said tank and means for tilting the tank to discharge the contents therefrom and to at the same time raise said eductor therewith.

16. In an apparatus for educting material from a receptacle such as a catch basin or the like, means providing a material loading area consisting of a tiltable tank, a reel including a helical conduit leading directly into said loading area to provide for a centrifugal movement of the material delivered to said reel, an eductor nozzle connected to said reel conduit, and means for delivering fluid under pressure to said nozzle to cause material to be impelled from the receptacle through said helical conduit, said tiltable tank being so connected to said reel as to enable tilting of the tank without disconnecting said reel therefrom.

17. In an eduction apparatus for cleaning receptacles such as catch basins or the like, a settling tank, an impeller for circulating fluid under pressure through said tank, an eductor nozzle, a flexible hose connecting said nozzle to said impeller, and means for connecting said nozzle to said tank and for lowering the nozzle into the receptacle comprising a hose connected at its lower end to said nozzle for supporting the nozzle in a substantially vertical position, a hose reel having a curved discharge passage connected at one end axially of the reel to the interior of said tank and at its other end to the upper end of said hose, and mechanism for controlling the rotation of said reel so that said hose may be progressively unreeled to support said nozzle in difierent vertical positions as the nozzle is low- 20 ered.

RONALD CLEMENT EVANS. 

